Crude oil costs close to $100 a barrel because traders are worried hostilities could soon restart and the world is burning through its emergency stockpiles.

© Ruth Fremson/The New York Times

Crude oil costs close to $100 a barrel because traders are worried hostilities could soon restart and the world is burning through its emergency stockpiles.

© Ruth Fremson/The New York Times

The long-delayed project, which the developer has not yet formally greenlit, would deliver Alaskan gas to Asian markets but take several years to construct.

© Nathaniel Wilder for The New York Times

Oil-rich Guyana is enjoying red-hot growth. But the boom is magnifying tensions over corruption, inequality and strained ties with Venezuela.

© Cesar Rodriguez for The New York Times

Exxon Mobil found a coveted growth engine in Guyana. Now it must navigate Guyana’s fractious politics and a territorial dispute with Venezuela.